adc12dl066civs National Semiconductor Corporation, adc12dl066civs Datasheet

no-image

adc12dl066civs

Manufacturer Part Number
adc12dl066civs
Description
Dual 12-bit, 66 Msps, 450 Mhz Input Bandwidth A/d Converter W/internal Reference
Manufacturer
National Semiconductor Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADC12DL066CIVS
Manufacturer:
PH
Quantity:
6 267
Part Number:
ADC12DL066CIVS
Manufacturer:
Texas Instruments
Quantity:
10 000
Part Number:
adc12dl066civs/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
© 2005 National Semiconductor Corporation
ADC12DL066
Dual 12-Bit, 66 Msps, 450 MHz Input Bandwidth A/D
Converter w/Internal Reference
General Description
The ADC12DL066 is a dual, low power monolithic CMOS
analog-to-digital converter capable of converting analog in-
put signals into 12-bit digital words at 66 Megasamples per
second (Msps), minimum. This converter uses a differential,
pipeline architecture with digital error correction and an on-
chip sample-and-hold circuit to minimize die size and power
consumption while providing excellent dynamic performance
and a 450 MHz Full Power Bandwidth. Operating on a single
3.3V power supply, the ADC12DL066 achieves 10.7 effec-
tive bits and consumes just 686 mW at 66 Msps, including
the reference current. The Power Down feature reduces
power consumption to 75 mW.
The differential inputs provide a full scale differential input
swing equal to 2 times V
ended input. Full use of the differential input is recom-
mended for optimum performance. The digital outputs from
the two ADCs are available on separate 12-bit buses with an
output data format choice of offset binary or two’s comple-
ment.
To ease interfacing to lower voltage systems, the digital
output driver power pins of the ADC12DL066 can be con-
nected to a separate supply voltage in the range of 2.4V to
the digital supply voltage.
This device is available in the 64-lead TQFP package and
will operate over the industrial temperature range of −40˚C to
+85˚C. An evaluation board is available to ease the evalua-
tion process.
Connection Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
REF
with the possibility of a single-
DS200552
Features
n Choice of Binary or 2’s complement output format
n Single +3.3V Supply Operation
n Internal Sample-and-Hold
n Outputs 2.4V to 3.3V Compatible
n Pin Compatible with ADC12D040
n Power Down Mode
n Internal/External Reference
Key Specifications
n Resolution
n DNL
n SNR (f
n SFDR (f
n Data Latency
n Power Consumption
Applications
n Ultrasound and Imaging
n Instrumentation
n Communications Receivers
n Sonar/Radar
n xDSL
n Cable Modems
— Operating
— Power Down Mode
IN
IN
= 10 MHz)
= 10 MHz)
20055201
December 2005
6 Clock Cycles
±
686 mW (typ)
www.national.com
0.5 LSB (typ)
75 mW (typ)
66 dB (typ)
81 dB (typ)
12 Bits

Related parts for adc12dl066civs

adc12dl066civs Summary of contents

Page 1

... An evaluation board is available to ease the evalua- tion process. Connection Diagram TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation Features n Choice of Binary or 2’s complement output format n Single +3.3V Supply Operation n Internal Sample-and-Hold n Outputs 2 ...

Page 2

... Ordering Information Industrial (−40˚C ≤ T ADC12DL066CIVS ADC12DL066EVAL Block Diagram www.national.com ≤ +85˚C) Package A 64 Pin TQFP Evaluation Board 2 20055202 ...

Page 3

Pin Descriptions and Equivalent Circuits Pin No. Symbol ANALOG I A− B− REF 11 INT/EXT REF ...

Page 4

Pin Descriptions and Equivalent Circuits Pin No. Symbol 24–29 DA0–DA11 34–39 42–47 DB0–DB11 52–57 ANALOG POWER 9, 18 10, 17, AGND 20, 61, 64 DIGITAL POWER 33 32, 49 DGND ...

Page 5

Absolute Maximum Ratings (Notes Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications – Voltage on Any ...

Page 6

Converter Electrical Characteristics Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V +2.5V 0V, INT/EXT REF pin = +3.3V Boldface limits apply for ...

Page 7

DC and Logic Electrical Characteristics Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V +2.5V 0V, INT/EXT REF pin = +3.3V, V face limits apply for ...

Page 8

AC Electrical Characteristics Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V +2.5V 0V, INT/EXT REF pin = +3.3V, V face limits apply for ...

Page 9

Specification Definitions APERTURE DELAY is the time after the rising edge of the clock to when the input signal is acquired or held for conver- sion. APERTURE JITTER (APERTURE UNCERTAINTY) is the variation in aperture delay from sample to sample. ...

Page 10

Timing Diagram Transfer Characteristic www.national.com Output Timing FIGURE 1. Transfer Characteristic 10 20055209 20055210 ...

Page 11

Typical Performance Characteristics unless otherwise stated DNL DNL vs DNL vs. f CLK +3.3V 20055218 20055221 20055219 11 = +2.5V MHz MHz CLK IN ...

Page 12

Typical Performance Characteristics unless otherwise stated (Continued) DNL vs. Clock Duty Cycle DNL vs. Temperature SNR, SINAD, SFDR vs. V www.national.com +3.3V 20055220 20055222 SNR, SINAD, SFDR vs 20055233 12 ...

Page 13

Typical Performance Characteristics unless otherwise stated (Continued) SNR, SINAD, SFDR vs. CLOCK DUTY CYCLE SNR, SINAD, SFDR vs. V Distortion vs +3.3V 20055229 SNR, SINAD, SFDR vs. Temperature REF 20055231 20055240 ...

Page 14

Typical Performance Characteristics unless otherwise stated (Continued) Distortion vs. Clock Duty Cycle Distortion vs vs www.national.com +3.3V 20055237 REF 20055238 20055243 14 = +2.5V MHz, ...

Page 15

Typical Performance Characteristics unless otherwise stated (Continued) SPECTRAL PLOT MHz +3.3V +2.5V IMD PERFORMANCE, F 20055262 MHz MHz CLK IN ...

Page 16

Functional Description Operating on a single +3.3V supply, the ADC12DL066 uses a pipeline architecture and has error correction circuitry to help ensure maximum performance. The differential analog input signal is digitized to 12 bits. The user has the choice of ...

Page 17

Applications Information frequency inputs, angular errors result in a reduction of the effective full scale input. For complex waveforms, however, angular errors will result in distortion. FIGURE 2. Expected Input Signal Range For single frequency sine waves with angular errors ...

Page 18

Applications Information FIGURE 4. Application Circuit using Transformer or Differential Op-Amp Drive Circuit FIGURE 5. Differential Drive Circuit using a fully differential amplifier. For undersampling applications, the RC pole should be set at about 1 times the maximum ...

Page 19

Applications Information erally be about V /2, but V A and V REF source as long as no d.c. current is drawn from either CM of these pins. 2.0 DIGITAL INPUTS Digital TTL/CMOS compatible inputs consist of ...

Page 20

Applications Information to the ground plane will reduce this problem. Additionally, bus capacitance beyond the specified 15 pF/pin will cause t to increase, making it difficult to properly latch the ADC OD output data. The result could be an apparent ...

Page 21

Applications Information Capacitive coupling between the typically noisy digital cir- cuitry and the sensitive analog circuitry can lead to poor performance. The solution is to keep the analog circuitry separated from the digital circuitry, and to keep the clock line ...

Page 22

Applications Information If the amplifier exhibits overshoot, ringing, or any evidence of instability, even at a very low level, it will degrade perfor- mance. A small series resistor at each amplifier output and a capacitor at the analog inputs (as ...

Page 23

... Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 64-Lead TQFP Package Ordering Number ADC12DL066CIVS NS Package Number VECO64A 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...

Related keywords